GB/T 38465-2020 in English
VALIDTest method of artificial leather and synthetic leather—Determination of cold resistance
- Issued on:2020-03-06
- Implemented on:2020-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$120.00
$117.00
$117.00
《GB/T 38465-2020人造革合成革试验方法 耐寒性的测定》由TC48（全国塑料制品标准化技术委员会）归口，主管部门为中国轻工业联合会。
Introduction
Analysis of the core content of the standard
| Method | Specimen size | Impact energy | Low temperature holding time | Applicable scenarios |
|---|---|---|---|---|
| Method A | 60×20mm | 2500g/50mm | 5min | Thin materials |
| Method B | φ130mm | 800g/150mm | 60min | Composite leather with base material |
| Method C | 200×200mm | Steel ball free fall | 22h/2h | Finished product test |
Key technical points
Specimen preparation specifications
State conditioning needs to be carried out at (23±2)℃, (50±10)%RH for ≥24h to ensure that the sample reaches humidity equilibrium before testing. Method B requires the use of polyurethane sponge (density 30±2kg/m³) as a buffer layer.
Key parameters of the equipment
- Low temperature tank: constant temperature accuracy of ±1℃, minimum -30℃
- Impact head: Method B adopts SR5.0±0.5mm hemispherical structure
- Specimen fixture: Method C requires a combination of wooden pad + polyurethane foam pad
Implementation suggestions
Method selection guide
- Method B is recommended for automotive interior parts to simulate the stress of composite structures in actual use
- Method A is preferred for ultra-thin synthetic leather (＜0.8mm)
- Method C condition 2 is applicable to the inspection of large parts such as finished seats
Solutions to common problems
| Abnormal phenomenon | Possible cause | Solution |
|---|---|---|
| Irregular fracture of the sample | Insufficient state adjustment | Extend the adjustment time to 48h |
| Temperature fluctuation of low temperature tank | Insufficient refrigerant | Regular calibration + adding refrigerant |
| Compression deformation of sponge | Density does not meet the standard | Replace with standard polyurethane sponge |
Sample only — not a preview of GB/T 38465-2020
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 34443-2017 in English
Terminology of artificial leather and synthetic leather
2017-09-29 -
GB/T 44507-2024 in English
Test method of leatherette—Determination and evaluation of surface scratch
2024-09-29 -
GB/T 38464-2020 in English
Test method of artificial leather and synthetic leather—Determination of rubbing resistance
2020-03-06 -
GB/T 8949-2025 in English
Polyurethane leatherette
2025-10-31
